Mine detail: Mirabel

Previously called 'BradfordGreat Eastern'

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Location

Lat / long:

38.69988, -122.60218

Resource(M)

Primary:	Mercury
Ore:	Cinnabar, Mercury, Metacinnabar
Gangue:	Chalcedony, Dolomite, Pyrite, Quartz
Orebody form:	TABULAR, PIPES
Discovery year:	1875

Production

Operation type:	Unknown
Production size:	Medium
Development status:	Past Producer
First production started:	1887

Geology

Host rock:	Franciscan Complex
Host type:	Serpentinite,Clastic Sedimentary Rock
Associated rock:	Franciscan Complex
Associated type:	Greenstone
Structure:	Mayacmas Anticline Trending Nw, Local Fractures, Serpentine - Sediment Contact
Alteration processes:	Silica Carbonate Alteration Of Serpentine, Kaolinization Of Sediments

References

MRDS	M055669
DEP	10040796
Reference	{Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252}{Deposit:: BAILEY, E. H., USGS, PERSONAL FILES}{Deposit:: YATES, R. G. AND HILPERT, L. S., 1946, QUICKSILVER DEPOSITS OF THE EASTERN MAYACMAS DISTRICT, LAKE AND NAPA COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 231 - 286}{Deposit:: AVERILL, C.V., 1947, MINES AND MINERAL RESOURCES OF LAKE COUNTY, CALIF.: CJMG, V. 43, P. 15-38}{Deposit:: 5) BRADLEY, W.W., 1918 QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.}{Deposit:: 6) RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-558}{Deposit:: 7) ROSS, C.P., 1940, QUICKSILVER DEPOSITS OF THE MAYACMAS AND SULFUR BANK DISTRICTS, CALIF.: USGS BULL. 922-B, P. 327-353}{Production:: USBM DATA}
Reporter	Peterson, Jocelyn A.